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Teseq has released an automated three-phase coupling/decoupling network (CDN) for EFT and surge testing.

The CDN 3063 provides safe, reliable operation in a range of test setups, including higher-current-level and three-phase equipment-under-test (EUT) testing.

To prevent damage to internal components, the CDN 3063 comes standard with over-temperature protection, which allows short-term operation at current exceeding the nominal rating.

A phase rotation indicator in the three-phase models shows a correctly sequenced power connection for safe EUT operation.

The new system meets IEC requirements for EUT currents over 16A and ANSI specifications for special coupling modes and pulse amplitude control, making it fully compliant with both industry standards.

Available in a burst-only configuration (CDN 3063-B32), with surge function only (CDN 3063-S32) or in a combined model that provides both (CDN 3063-C32), the modular CDN 3063 can be upgraded to protect a user’s initial investment and adapts to changing test environments.

The CDN 3063 couples burst and surge pulses in one-, two- or three-phase power mains up to 480V with a current range up to 32A that incorporates the new IEC standard’s provision for testing EUTs with high power consumption.

The standard defines three classes of filter inductance for current ranges: up to 25A, 25-60A and 60-100A.

Reduced decoupling inductances in series with the EUT power connection are used in order to minimise series-voltage losses with higher-current EUTs.

The CDN can couple EFT pulses specified in IEC 61000-4-4 Ed2, the combination wave pulse defined in IEC 61000-4-5 and the ring wave pulse from IEC 61000-4-12, as well as the special amplitude control pulse from ANSI C62.45.

The CDN 3063 utilises the latest electronic component technology to measure and track the mains voltage and simultaneously control the pulse phase angle and amplitude.

When combined with Teseq’s NSG 3060 burst generator, the CDN 3063 fulfils the coupling requirements designated by ANSI C62.41, which requires a constant peak voltage amplitude for any EUT mains voltage and phase angle.

The CDN 3063 can also be used with Teseq’s NSG 3040 burst generators to increase the generator’s effectiveness and enable its use in higher-current-level or three-phase EUT applications.

The AC/DC EUT current range is 3 x 32A continuous, 3 x 40A for approximately 35 minutes and 3 x 50A for about 10 minutes.

The CDN 3063 weighs 43kg (94.8lb) and measures 449mm (17.7in) in width, 310.5mm (12.25in) in height and 565mm (22.2in) in depth.

Teseq — EMC test solutions: combining tradition and experience with dynamic and innovative development 

Teseq is the new name of the Test Systems Division that belonged to the Swiss-based Schaffner Group until it became an independent company after a management buyout in 2006.  

Teseq has retained all of the former Schaffner Division’s management and employees ensuring business continuity, commitment to existing and new customers and a dynamic approach to new product development.  

Teseq also continues to stand for customised client support, proven products and extensive know-how. The company’s focus on its core business — EMC test solutions — will be reinforced by greater attention to innovation in the area of research and development. The streamlined size of the enterprise ensures maximum independence, agility and flexibility.  

Teseq offers standalone products and complete solutions for EMC conducted immunity testing including: ESD generators; harmonics; flicker and power quality test systems. It also provides a complete range of EMC radio frequency test equipment from measuring receivers, power amplifiers and GTEM cells to very powerful software for the automation of EMC test houses.    

Teseq’s extensive knowledge of EMC systems can be found in more than 90 countries worldwide with hundreds of systems installed in applications such as automotive, military, telecoms, commercial and medical.  

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